+# Format database timestamps as W3C DTF.
+function w3cdate ($timestamp) {
+ preg_match('/(\d{4})-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d)/', $timestamp, $date);
+
+ return date(DATE_W3C, mktime($date[4], $date[5], $date[6], $date[2], $date[3], $date[1]));
+}
+